Ralf,
Thank you for your question.
I understand your argumentation against "spf" prefix. But this has nothing
against prefixed values as whole.
Number of possible TLA (Tree Letters Acronyms) are 26*26*26 = 17576
As well S, P and F are not widely used letters in regular english words.
http://www.askoxford.com/asktheexperts/faq/aboutwords/frequency
Also SPF is not a valid english word.
Even more - F is somethat rare first letter.]
This result such a conflict has ~0.01 % probability.
But unfortunaly there is at least SPF TLA already - "sun protection factor".
As well
http://www.acronymfinder.com/af-query.asp?Acronym=SPF
I agree with you that we need to reduce this conflict probability. How about
using "spfv1" prefix ?
http://www.google.com/search?q=spfv1 result in ~207 pages and *all* of them
related to this technology.
v is rare as first letter. Combined with version number this is unique
indentifier for SPF technology.
This is perfect prefix - little, has a meaning SPF v 1, versioned (think
about future versions), while still legal for DNS (no "_").
I will defend prefixed SPF TXT records technology until somebody will
clearly show that there is real _technical_ problems with this.
Unfortunaly I can not afford visiting IETF meetings to do this in person -
so you must read my defence in this mailing list ;-)
--
Andriy G. Tereshchenko
TAG Software
Odessa, Ukraine
http://www.24.odessa.ua
----- Original Message -----
From: "Ralf Doeblitz" <list+spf-discuss(_at_)doeblitz(_dot_)net>
To: <spf-discuss(_at_)v2(_dot_)listbox(_dot_)com>
Sent: Saturday, July 10, 2004 4:08 PM
Subject: Re: [spf-discuss] Why TXT zone record location for SPF and Sender
ID data are domain default ( @ TXT "data") ?
--On Freitag, Juli 09, 2004 22:13:28 +0300 "Andrew G. Tereschenko"
<spf-discuss(_at_)spam(_dot_)24(_dot_)odessa(_dot_)ua> wrote:
[...]
Just for a record - I do not ask you to use A or CNAME record.
I wish only TXT record used for spf.pobox.com.
This will disallow specific information for the host "spf". Also it will
disallow use of CNAME-RRs (which shall not be used together with other RRs
for the same name) for the host "spf". This is an unnecessary limitiation
that would reduce acceptance out there.
Ralf Döblitz
-------
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